#include <STC15F2K60S2.H>

void Led_show(unsigned char addr,unsigned char enable)
{
	static unsigned char temp=0x00;
	static unsigned char temp_old = 0xff;
	if(enable)
	{
		temp|=0x01<<addr;
	}
	else
	{
		temp&=~(0x01<<addr);
	}
	if(temp!=temp_old)
	{
		P0 =~temp;
		P2=P2&0x1f | 0x80;
		P2 &=0x1f;
		temp_old=temp;
	}
}